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Plants that Flower in September

The heat may be starting to fade, but that does not mean the colour should. Keep it fresh with asters, phlox and late-flowering anemones.

By type
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Used at Chelsea
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Available items
Showing Flowering month : September clear all
1037 items
Muhlenbergia capillaris

New

25% off

Muhlenbergia capillaris
£2.99 - £33.74
approx 20 seeds In stock (shipped within 2-3 working days)
9cm pot In stock (shipped within 2-3 working days)
2 litre pot In stock (shipped within 2-3 working days)
3 × 9cm pots In stock (shipped within 2-3 working days)
6 × 9cm pots In stock (shipped within 2-3 working days)
3 × 2 litre pots In stock (shipped within 2-3 working days)
1 star 1 star 1 star 1 star 1 star 5.0 5 1
Panicum virgatum Heavy Metal

25% off

Panicum virgatum 'Heavy Metal'
£7.49 - £37.49
9cm pot In stock (shipped within 2-3 working days)
2 litre pot In stock (shipped within 2-3 working days)
3 × 9cm pots In stock (shipped within 2-3 working days)
6 × 9cm pots In stock (shipped within 2-3 working days)
3 × 2 litre pots In stock (shipped within 2-3 working days)
0 star 0.5 star 1 star 1 star 1 star 3.5 5 2
Perovskia Bluesette

New

25% off

Perovskia 'Bluesette'
£7.49 - £14.24
9cm pot In stock (shipped within 2-3 working days)
3 × 9cm pots In stock (shipped within 2-3 working days)
Petunia Tumbelina Compact Nicola

New

25% off

Petunia 'Tumbelina Compact Nicola'
£5.24 - £14.98
9cm pot In stock (shipped within 2-3 working days)
2 + 1 FREE 9cm pots In stock (shipped within 2-3 working days)
5 × rooted cuttings sold out
10 + 5 FREE rooted cuttings sold out
periwinkle Soiree Dark Pink with Eye

New

25% off

periwinkle 'Soiree Dark Pink with Eye'
£5.24 - £14.98
9cm pot In stock (shipped within 2-3 working days)
2 + 1 FREE 9cm pots In stock (shipped within 2-3 working days)
5 × rooted cuttings sold out
10 + 5 FREE rooted cuttings sold out
Nemesia Honey Bicolour Wine (Honey Series)

New

25% off

Nemesia 'Honey Bicolour Wine' (Honey Series)
£5.24 - £14.98
9cm pot In stock (shipped within 2-3 working days)
2 + 1 FREE 9cm pots In stock (shipped within 2-3 working days)
5 × rooted cuttings sold out
10 + 5 FREE rooted cuttings sold out
Phlox paniculata Blue Paradise

25% off

Phlox paniculata 'Blue Paradise'
£7.49 - £29.99
9cm pot In stock (shipped within 2-3 working days)
3 × 9cm pots In stock (shipped within 2-3 working days)
2 litre pot available to order from autumn
3 × 2 litre pots available to order from autumn
0.5 star 1 star 1 star 1 star 1 star 4.6 5 7
Salvia nemorosa Schwellenburg

25% off

Salvia nemorosa 'Schwellenburg'
£7.49 - £33.74
9cm pot In stock (shipped within 2-3 working days)
2 litre pot In stock (shipped within 2-3 working days)
3 × 9cm pots In stock (shipped within 2-3 working days)
3 × 2 litre pots In stock (shipped within 2-3 working days)
0 star 0.75 star 1 star 1 star 1 star 3.7 5 3
Salvia patens

25% off

Salvia patens
£7.49 - £17.99
9cm pot In stock (shipped within 2-3 working days)
3 × 9cm pots In stock (shipped within 2-3 working days)
0 star 0.75 star 1 star 1 star 1 star 3.7 5 3
Salvia × sylvestris Schneehügel

25% off

Salvia × sylvestris 'Schneehügel'
£7.49 - £17.24
9cm pot In stock (shipped within 2-3 working days)
3 × 9cm pots In stock (shipped within 2-3 working days)
1 star 1 star 1 star 1 star 1 star 5.0 5 3
Pennisetum alopecuroides Hameln Gold (PBR)

25% off

Pennisetum alopecuroides 'Hameln Gold' (PBR)
£7.49 - £29.99
9cm pot In stock (shipped within 2-3 working days)
3 × 9cm pots In stock (shipped within 2-3 working days)
6 × 9cm pots In stock (shipped within 2-3 working days)
Rudbeckia hirta Enchanted Velvet Flame

25% off

Rudbeckia hirta 'Enchanted Velvet Flame'
£9.99 £7.49
2 litre pot In stock (shipped within 2-3 working days)
Salvia nemorosa Caradonna

25% off

Salvia nemorosa 'Caradonna'
£7.49 - £33.74
9cm pot In stock (shipped within 2-3 working days)
2 litre pot In stock (shipped within 2-3 working days)
3 × 9cm pots In stock (shipped within 2-3 working days)
6 × 9cm pots In stock (shipped within 2-3 working days)
3 × 2 litre pots In stock (shipped within 2-3 working days)
0.75 star 1 star 1 star 1 star 1 star 4.8 5 50
Panicum virgatum Rehbraun

25% off

Panicum virgatum 'Rehbraun'
£7.49 - £37.49
9cm pot In stock (shipped within 2-3 working days)
3 × 9cm pots In stock (shipped within 2-3 working days)
6 × 9cm pots In stock (shipped within 2-3 working days)
3 × 2 litre pots Unavailable
1 star 1 star 1 star 1 star 1 star 5.0 5 1
Salvia uliginosa African Skies

25% off

Salvia uliginosa 'African Skies'
£7.49 - £14.99
9cm pot In stock (shipped within 2-3 working days)
3 × 9cm pots In stock (shipped within 2-3 working days)
1 star 1 star 1 star 1 star 1 star 5.0 5 2
Cosmos atrosanguineus Cherry Chocolate ('Vg001') (PBR)

New

25% off

Cosmos atrosanguineus Cherry Chocolate ('Vg001') (PBR)
£7.49 - £35.99
9cm pot In stock (shipped within 2-3 working days)
2 litre pot In stock (shipped within 2-3 working days)
3 × 9cm pots In stock (shipped within 2-3 working days)
3 × 2 litre pots In stock (shipped within 2-3 working days)
Pennisetum Fairy Tails

25% off

Pennisetum 'Fairy Tails'
£7.49 - £29.99
9cm pot In stock (shipped within 2-3 working days)
3 × 9cm pots In stock (shipped within 2-3 working days)
6 × 9cm pots In stock (shipped within 2-3 working days)
Anemone × hybrida Königin Charlotte

25% off

Anemone × hybrida 'Königin Charlotte'
£7.49 - £33.74
9cm pot In stock (shipped within 2-3 working days)
2 litre pot In stock (shipped within 2-3 working days)
3 × 9cm pots In stock (shipped within 2-3 working days)
6 × 9cm pots In stock (shipped within 2-3 working days)
3 × 2 litre pots In stock (shipped within 2-3 working days)
0.25 star 1 star 1 star 1 star 1 star 4.3 5 19
Chrysanthemum Clara Curtis

25% off

Chrysanthemum 'Clara Curtis'
£7.49 - £17.24
9cm pot In stock (shipped within 2-3 working days)
3 × 9cm pots In stock (shipped within 2-3 working days)
Symphyotrichum novi-belgii White Ladies

25% off

Symphyotrichum novi-belgii 'White Ladies'
£7.49 - £37.49
9cm pot In stock (shipped within 2-3 working days)
2 litre pot In stock (shipped within 2-3 working days)
3 × 9cm pots In stock (shipped within 2-3 working days)
3 × 2 litre pots In stock (shipped within 2-3 working days)
0 star 1 star 1 star 1 star 1 star 4.0 5 3
Petunia Designer Royal Lace (Designer Series)

New

25% off

Petunia Designer Royal Lace Designer Series
£5.24 - £14.98
9cm pot In stock (shipped within 2-3 working days)
2 + 1 FREE 9cm pots In stock (shipped within 2-3 working days)
5 × rooted cuttings sold out
10 + 5 FREE rooted cuttings sold out
Bistorta affinis Superba

25% off

Bistorta affinis 'Superba'
£7.49 - £17.24
9cm pot In stock (shipped within 2-3 working days)
3 × 9cm pots In stock (shipped within 2-3 working days)
Heliopsis helianthoides var. scabra Summer Nights

25% off

Heliopsis helianthoides var. scabra 'Summer Nights'
£7.49 - £17.99
9cm pot In stock (shipped within 2-3 working days)
3 × 9cm pots In stock (shipped within 2-3 working days)
1 star 1 star 1 star 1 star 1 star
Rudbeckia hirta Enchanted Ruby Crush

25% off

Rudbeckia hirta 'Enchanted Ruby Crush'
£9.99 £7.49
2 litre pot In stock (shipped within 2-3 working days)
Penstemon digitalis Dakota Burgundy ('Tnpendb') (PBR) (Dakota Series)

25% off

Penstemon digitalis Dakota Burgundy ('Tnpendb') (PBR) (Dakota Series)
£7.49 - £17.99
9cm pot In stock (shipped within 2-3 working days)
3 × 9cm pots In stock (shipped within 2-3 working days)
Rudbeckia hirta Enchanted Summer Sunset

25% off

Rudbeckia hirta 'Enchanted Summer Sunset'
£9.99 £7.49
2 litre pot In stock (shipped within 2-3 working days)
Nepeta Cat's Pajamas

25% off

Nepeta 'Cat's Pajamas'
£7.49 - £17.99
9cm pot In stock (shipped within 2-3 working days)
3 × 9cm pots In stock (shipped within 2-3 working days)
1 star 1 star 1 star 1 star 1 star
Salvia × sylvestris Rose Queen

25% off

Salvia × sylvestris 'Rose Queen'
£7.49 - £29.99
9cm pot In stock (shipped within 2-3 working days)
3 × 9cm pots In stock (shipped within 2-3 working days)
6 × 9cm pots In stock (shipped within 2-3 working days)
0.5 star 1 star 1 star 1 star 1 star
Symphyotrichum Coombe Fishacre

25% off

Symphyotrichum 'Coombe Fishacre'
£7.49 - £17.24
9cm pot In stock (shipped within 2-3 working days)
3 × 9cm pots In stock (shipped within 2-3 working days)
Salvia nemorosa Caradonna Pink Inspiration ('Tuitsalv') (PBR)

25% off

Salvia nemorosa Caradonna Pink Inspiration ('Tuitsalv') (PBR)
£7.49 - £33.74
9cm pot In stock (shipped within 2-3 working days)
3 × 9cm pots In stock (shipped within 2-3 working days)
6 × 9cm pots In stock (shipped within 2-3 working days)
2 litre pot available to order from autumn
3 × 2 litre pots available to order from autumn
Verbascum Peach Champagne (PBR)

New

25% off

Verbascum Peach Champagne (PBR)
£7.49 - £18.74
9cm pot In stock (shipped within 2-3 working days)
3 × 9cm pots In stock (shipped within 2-3 working days)
Petunia Tumbelina Compact Sophia

New

25% off

Petunia 'Tumbelina Compact Sophia'
£5.24 - £14.98
9cm pot In stock (shipped within 2-3 working days)
2 + 1 FREE 9cm pots In stock (shipped within 2-3 working days)
5 × rooted cuttings sold out
10 + 5 FREE rooted cuttings sold out
Rudbeckia hirta Enchanted Forest

25% off

Rudbeckia hirta 'Enchanted Forest'
£9.99 £7.49
2 litre pot In stock (shipped within 2-3 working days)
Salvia nemorosa Sensation Rose (Sensation Series)

25% off

Salvia nemorosa 'Sensation Rose' (Sensation Series)
£7.49 - £29.99
9cm pot In stock (shipped within 2-3 working days)
3 × 9cm pots In stock (shipped within 2-3 working days)
6 × 9cm pots In stock (shipped within 2-3 working days)
0.75 star 1 star 1 star 1 star 1 star
Bistorta amplexicaulis Blackfield (PBR)

25% off

Bistorta amplexicaulis 'Blackfield' (PBR)
£7.49 - £35.99
9cm pot In stock (shipped within 2-3 working days)
3 × 9cm pots In stock (shipped within 2-3 working days)
2 litre pot available to order from autumn
3 × 2 litre pots available to order from autumn
Scabiosa Butterfly Blue

25% off

Scabiosa 'Butterfly Blue'
£7.49 - £29.99
9cm pot In stock (shipped within 2-3 working days)
3 × 9cm pots In stock (shipped within 2-3 working days)
6 × 9cm pots In stock (shipped within 2-3 working days)
0.5 star 1 star 1 star 1 star 1 star
Lupinus Noble Maiden (Band of Nobles Series)

25% off

Lupinus 'Noble Maiden' (Band of Nobles Series)
£7.49 - £37.49
9cm pot In stock (shipped within 2-3 working days)
3 × 9cm pots In stock (shipped within 2-3 working days)
2 litre pot available to order from autumn
3 × 2 litre pots available to order from autumn
0.25 star 1 star 1 star 1 star 1 star
Salvia Kisses and Wishes (PBR)

25% off

Salvia 'Kisses and Wishes' (PBR)
£7.49 - £29.98
9cm pot In stock (shipped within 2-3 working days)
3 × 9cm pots In stock (shipped within 2-3 working days)
6 × 9cm pots In stock (shipped within 2-3 working days)
Hylotelephium Lime Twister (PBR) (Sunsparkler Series)

25% off

Hylotelephium 'Lime Twister' (PBR) (SunSparkler Series)
£7.49 - £17.24
9cm pot In stock (shipped within 2-3 working days)
3 × 9cm pots In stock (shipped within 2-3 working days)
1 star 1 star 1 star 1 star 1 star
Miscanthus sinensis Kleine Silberspinne

25% off

Miscanthus sinensis 'Kleine Silberspinne'
£7.49 - £37.49
9cm pot In stock (shipped within 2-3 working days)
2 litre pot In stock (shipped within 2-3 working days)
3 × 9cm pots In stock (shipped within 2-3 working days)
6 × 9cm pots In stock (shipped within 2-3 working days)
3 × 2 litre pots In stock (shipped within 2-3 working days)
0.75 star 1 star 1 star 1 star 1 star
Lysimachia atropurpurea Beaujolais

25% off

Lysimachia atropurpurea 'Beaujolais'
£7.49 - £12.71
9cm pot In stock (shipped within 2-3 working days)
3 × 9cm pots In stock (shipped within 2-3 working days)
0.25 star 1 star 1 star 1 star 1 star
Eupatorium maculatum (Atropurpureum Group) Purple Bush

25% off

Eupatorium maculatum (Atropurpureum Group) 'Purple Bush'
£7.49 - £17.24
9cm pot In stock (shipped within 2-3 working days)
3 × 9cm pots In stock (shipped within 2-3 working days)
0.75 star 1 star 1 star 1 star 1 star
Hylotelephium telephium (Atropurpureum Group) Purple Emperor

25% off

Hylotelephium telephium (Atropurpureum Group) 'Purple Emperor'
£7.49 - £14.99
9cm pot In stock (shipped within 2-3 working days)
3 × 9cm pots In stock (shipped within 2-3 working days)
1 star 1 star 1 star 1 star 1 star
Salvia × sylvestris Viola Klose

25% off

Salvia × sylvestris 'Viola Klose'
£7.49 - £33.74
9cm pot In stock (shipped within 2-3 working days)
2 litre pot In stock (shipped within 2-3 working days)
3 × 9cm pots In stock (shipped within 2-3 working days)
6 × 9cm pots In stock (shipped within 2-3 working days)
3 × 2 litre pots In stock (shipped within 2-3 working days)
0.25 star 1 star 1 star 1 star 1 star
Lobelia cardinalis Queen Victoria

25% off

Lobelia cardinalis 'Queen Victoria'
£7.49 - £35.99
9cm pot In stock (shipped within 2-3 working days)
2 litre pot In stock (shipped within 2-3 working days)
3 × 9cm pots In stock (shipped within 2-3 working days)
6 × 9cm pots In stock (shipped within 2-3 working days)
3 × 2 litre pots In stock (shipped within 2-3 working days)
0.5 star 1 star 1 star 1 star 1 star
Rudbeckia fulgida var. sullivantii Goldsturm

25% off

Rudbeckia fulgida var. sullivantii 'Goldsturm'
£7.49 - £33.74
9cm pot In stock (shipped within 2-3 working days)
2 litre pot In stock (shipped within 2-3 working days)
3 × 9cm pots In stock (shipped within 2-3 working days)
6 × 9cm pots In stock (shipped within 2-3 working days)
3 × 2 litre pots In stock (shipped within 2-3 working days)
0.75 star 1 star 1 star 1 star 1 star
Cirsium rivulare Trevors Felley Find (PBR)

25% off

Cirsium rivulare 'Trevors Felley Find' (PBR)
£7.49 - £33.74
9cm pot In stock (shipped within 2-3 working days)
3 × 9cm pots In stock (shipped within 2-3 working days)
6 × 9cm pots In stock (shipped within 2-3 working days)
0.75 star 1 star 1 star 1 star 1 star
Crocosmia Paul's Best Yellow

25% off

Crocosmia 'Paul's Best Yellow'
£7.49 - £26.98
2 litre pot In stock (shipped within 2-3 working days)
2 + 1 FREE 2 litre pots In stock (shipped within 2-3 working days)
9cm pot available to order from autumn
3 × 9cm pots available to order from autumn
Achillea Credo

25% off

Achillea 'Credo'
£7.49 - £29.99
9cm pot In stock (shipped within 2-3 working days)
3 × 9cm pots In stock (shipped within 2-3 working days)
6 × 9cm pots In stock (shipped within 2-3 working days)
0.5 star 1 star 1 star 1 star 1 star
Carex buchananii Red Rooster

New

25% off

Carex buchananii 'Red Rooster'
£7.49 - £18.74
9cm pot In stock (shipped within 2-3 working days)
3 × 9cm pots In stock (shipped within 2-3 working days)
Nepeta govaniana

New

25% off

Nepeta govaniana
£7.49 - £18.74
9cm pot In stock (shipped within 2-3 working days)
3 × 9cm pots In stock (shipped within 2-3 working days)
Calibrachoa Cabaret Early Light Pink Eye (Cabaret Series)

New

25% off

Calibrachoa 'Cabaret Early Light Pink Eye' (Cabaret Series)
£5.24 - £14.98
9cm pot In stock (shipped within 2-3 working days)
2 + 1 FREE 9cm pots In stock (shipped within 2-3 working days)
5 × rooted cuttings sold out
10 + 5 FREE rooted cuttings sold out
Agastache rugosa Beelicious Pink ('Agapk') (PBR)

New

25% off

Agastache rugosa Beelicious Pink ('Agapk') (PBR)
£7.49 - £32.24
9cm pot In stock (shipped within 2-3 working days)
3 × 9cm pots In stock (shipped within 2-3 working days)
6 × 9cm pots In stock (shipped within 2-3 working days)
Nepeta Neptune ('Bokratune') (PBR)

25% off

Nepeta Neptune ('Bokratune') (PBR)
£7.49 - £29.99
9cm pot In stock (shipped within 2-3 working days)
3 × 9cm pots In stock (shipped within 2-3 working days)
6 × 9cm pots In stock (shipped within 2-3 working days)
0.75 star 1 star 1 star 1 star 1 star
Achillea Terracotta

25% off

Achillea 'Terracotta'
£7.49 - £37.49
9cm pot In stock (shipped within 2-3 working days)
3 × 9cm pots In stock (shipped within 2-3 working days)
2 litre pot In stock (shipped within 2-3 working days)
3 × 2 litre pots In stock (shipped within 2-3 working days)
0.25 star 1 star 1 star 1 star 1 star
Petunia Designer Cappuccino (Designer Series)

New

25% off

Petunia Designer Cappuccino Designer Series
£5.24 - £14.98
9cm pot In stock (shipped within 2-3 working days)
2 + 1 FREE 9cm pots In stock (shipped within 2-3 working days)
5 × rooted cuttings sold out
10 + 5 FREE rooted cuttings sold out
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